Used by Warren and Kurt Johnson, MagnaFuel ProStar 500 fuel pumps are built with computer-machined aluminum bodies. They feature custom-built motors and an exclusive vane/rotor design to provide cool, low-amperage operation without overheating. Compatible with gasoline and alcohol fuel, these pumps use an externally adjustable bypass to eliminate pump cavitation, stabilize fuel flow, and eliminate fuel starvation. They feed engines up to 2,000 HP.